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Effect of Sand Production on Casing Integrity Journal of

Effect of Sand Production on Casing Integrity Journal of

Effect of Sand Production on Casing Integrity Journal of ...

2007-12-1  excessive sand production (12–16). Chemical corrosion is a major casing damage mechanism in the NiuZhuang field. In a total of six wells being investigated, damage to five of those wells was caused by corrosion (17). However, this paper describes another casing failure mechanism; unintended excessive sand production. The following description ...

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Effect of Sand Production on Casing Integrity PETSOC ...

2006-6-13  It must also attend the production strategies so that the casing integrity is maintained in accordance with considerations for the production targets. When casing damage happens in the field history, it is critical to analyze the circumstances around the damage and draw lessons from them. All these tasks are executed in this paper.

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Effect of Sand Production on Casing Integrity

2017-6-20  Chemical corrosion is a major casing damage mechanism in the NiuZhuang field. In a total of six wells being investigated, damage to five of those wells was caused by corrosion(17). However, this paper describes another casing failure mechanism; unintended excessive sand production. The following description will first present relevant field data.

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The Effect of Formation Flow on the Integrity of ...

The deleterious effects of near-wellbore formation movement on the cross-sectional integrity of casing is well documented in the literature. The most common occurrences of this phenomenon are associated with the creep of salt sections. However, similar problems have been discovered in the attempts to recover Athabasca oil sands.

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Identification and evaluation of well integrity and causes ...

2017-9-1  Also, a combination of sand production and reservoir compaction is another challenge to casing integrity. Sand production depletes the lateral support, while reservoir compaction adds axial compressive load. This loading perturbation results into an extra load on the casing and makes it susceptible to buckling.

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Sand production during the extrusion of hydrocarbons from ...

2014-12-1  Experimental findings on sand production can be categorized into four different effects: the flowing fluid characteristics effect, the material characteristics effect, the loading effect, and the outlet size effect.

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Casing Damage Prediction Model Based on the Data-Driven

2020-8-26  Casing damage caused by sand production in unconsolidated sandstone reservoirs often results in oil wells unable to produce normally. However, due to the complex mechanism of sheath damage caused by sand production, there is no more mature technology for predicting the risk of casing damage in advance.

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Effect of casing internal pressure on integrity of cement ...

The integrity of cement ring is critical for the safe production of crude oil and natural gas and the protection of marine environment in deep water shallow formation. Due to the poor support of the shallow formation to the cement ring, the cement ring is easily damaged by the casing internal pressure (CIP).

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Review of Sand Production Prediction Models

Sand production is the cause of many problems in the oil industry and it affects the completion adversely. These problems include, but are not limited to, plugging the perforations or production liner, wellbore instability, failure of sand control completions [ 1

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(PDF) Casing Design and Analysis for Heavy Oil Wells

Figure 2 shows the magnitude of various casing strains for a 244.5 mm, 59.5kg/m L80 SAGD production casing string running through a 7.5 /30 m build section and setting to a reservoir depth of 400 ...

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Casing- and screen-failure analysis in highly compacting ...

If casing failure occurs in the unperforated sand layer just above the compacting reservoir, it induces localized high-velocity flow on the upper part of the screen, causing potential screen erosion. Casing failure caused by fault slip near the reservoir occurs only if a fault has sealing capability while maintaining a large pressure ...

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A comprehensive review on the loss of wellbore integrity ...

Additionally, loss of production, casing collapse, etc. are the other consequences that are caused by the annular flow. In such situations, the well needs to be shut-in, repaired or in worst-scenario case abandoned prior to the end of its productive life.

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Effect of casing internal pressure on integrity of cement ...

The integrity of cement ring is critical for the safe production of crude oil and natural gas and the protection of marine environment in deep water shallow formation. Due to the poor support of the shallow formation to the cement ring, the cement ring is easily damaged by the casing internal pressure (CIP).

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Review of Sand Production Prediction Models

Sand production in oil and gas wells can occur if fluid flow exceeds a certain threshold governed by factors such as consistency of the reservoir rock, stress state and the type of completion used around the well. The amount of solids can be less than a few grams per cubic meter of reservoir fluid, posing only minor problems, or a substantial amount over a short period of time, resulting in ...

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THE EFFECT OF CEMENT MECHANICAL PROPERTIES AND

2017-4-28  supports casing and increases casing-collapse resistance. Due to the high-pressure, high-temperature (HPHT) conditions, the cement sheath plays an important role in maintaining wellbore integrity. During the production process in HPHT wells, the pressure differential inside the casing and the surrounding formation is larger than the

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Identification and evaluation of well integrity and causes ...

The consequence of these well integrity issues is mainly the fluid migration over time within or escaping from the wells. Past studies reveal that well integrity barriers are highly impacted by cement carbonation and casing corrosion processes, fluid migration, in-situ conditions, cement and casing

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(PDF) Casing Design and Analysis for Heavy Oil Wells

Figure 2 shows the magnitude of various casing strains for a 244.5 mm, 59.5kg/m L80 SAGD production casing string running through a 7.5 /30 m build section and setting to a reservoir depth of 400 ...

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PAPER OPEN ACCESS Casing Failure Characteristics ...

2020-4-6  number of casing damaged wells started to increase year by year. The average time for casing to be damage was 10.21 years [5]. Casing failure is the result of many effects. The causing factors of casing failure include geological, casing, production, engineering and manmade factors. In China, surface and reservoir subsidence is

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A review of experimental studies on sand screen selection ...

2020-1-2  Sand production affects more than 70% of the oil and gas reservoirs around the world (Khamehchi et al. 2015; Ikporo and Sylvester 2015).It can have a severe effect on well productivity and equipment as it could plug the well and erode equipment

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Laboratory study on casing deformation during multistage ...

2021-5-1  For different casing wall thicknesses with the same casing material, the casing with a thicker wall has a higher tolerance of loading stress before it yields. Based on the laboratory data in Fig. 6 , for the P110 casing, we obtained a correlation to predict the minimum horizontal stress before casing yields as follows: (2) 1 σ t = A 0 + A 1 I ...

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New Analytical Method to Evaluate Casing Integrity during ...

An accurate analysis of casing stress distribution and its variation regularities present several challenges during hydraulic fracturing of shale gas wells. In this paper, a new analytical mechanical-thermal coupling method was provided to evaluate casing stress. For this new method, the casing, cement sheath, and formation (CCF) system was divided into three parts such as initial stress field ...

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Influence of Casing Centralization on Cement Sheath ...

A successful casing standoff helps boost well integrity and cement integrity, both of which are critical factors during a well's production life. The casing standoff is 100 percent in several ...

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Evaluation of Casing Integrity Defects Considering Wear ...

In addition, Lin et al. [9] carried out casing integrity evaluation for the application of casing design by considering the effects of wear and corrosion on casing. In this study, effect of casing ...

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Effect of Particle Erosion on the External Collapse ...

2020-11-11  high velocity flow, causing severe erosion. Collapse of the production casing may lead to a re-duced production rate of the well or even to a non-producing well. Objective of this research is to predict the effect of particle erosion on the external collapse pressure of the production casing

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(PDF) Numerical Modeling of Casing Integrity in Hydrate ...

Casing and formation integrity for a well drilled in hydrate bearing sediments is investigated using numerical modeling. An axisymmetric numerical model that investigates the stability of the ...

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PAPER OPEN ACCESS Casing Failure Characteristics ...

2020-4-6  number of casing damaged wells started to increase year by year. The average time for casing to be damage was 10.21 years [5]. Casing failure is the result of many effects. The causing factors of casing failure include geological, casing, production, engineering and manmade factors. In China, surface and reservoir subsidence is

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DrillingForGas - Influence of corrosion on casing strength

2021-8-14  The same considerations apply as for the inside of production casing below the production packer. b. Outside of casing strings exposed to formation fluids. Casing may be exposed to water rich formation zones or aquifers. If the water phase is contaminated with CO2, H2S, O2 or other corrosive agents, corrosion may result.

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A review of experimental studies on sand screen selection ...

2020-1-2  Sand production affects more than 70% of the oil and gas reservoirs around the world (Khamehchi et al. 2015; Ikporo and Sylvester 2015).It can have a severe effect on well productivity and equipment as it could plug the well and erode equipment

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Burst and Collapse Responses of Production Casing in ...

They may include: (i) casing thermal expansion and c ycl i c t her mal stress, due to well working temperature during steam injection, production and cooling phases [1,2], (ii) surrounding ...

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Burst and Collapse Responses of Production Casing in ...

Cemented production casing is subject to both passive and active loading conditions during operation: thermally induced strain-based cyclic axial loading occurs in conjunction with net internal or ...

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