CN105781533A - Ground surface blowing and spraying treatment method - Google Patents
Ground surface blowing and spraying treatment method Download PDFInfo
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- CN105781533A CN105781533A CN201410806645.4A CN201410806645A CN105781533A CN 105781533 A CN105781533 A CN 105781533A CN 201410806645 A CN201410806645 A CN 201410806645A CN 105781533 A CN105781533 A CN 105781533A
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Abstract
The invention provides a ground surface blowing and spraying treatment method, which comprises the following steps of Step 20, entering an oil pipe into a casing pipe of a node to be subjected to plugging treatment; Step 30, connecting a ground pipeline with one end of the oil pipe, performing pressure test on a connecting part; and if the connecting part is smooth and does not leak, judging that the oil pipe pressure test is qualified; and Step 50, injecting a plugging agent into the oil pipe for plugging a node well through the plugging agent. By using the treatment method, a ground surface blowing and spraying passage can be conveniently and fast plugged.
Description
Technical field
The present invention relates to viscous crude production technical field, alter spray administering method in particular to a kind of earth's surface.
Background technology
At present, heavy oil wells is in production process of handling up, stratum occurring, macrovoid, Fractured alter vapour passage, along with the carrying out of production development, alters vapour passage and progressively expand, oil reservoir bury shallower, ground mulching layer is relatively thin and loose, there is the places such as penetrability microcrack, occur steaming the problem altering ejection earth's surface, cause the substantial amounts of energy and resources loss, and production exists bigger potential safety hazard and problem of environmental pollution, administer accordingly, it would be desirable to earth's surface to be altered spray problem.
Summary of the invention
It is desirable to provide spray administering method is altered on a kind of earth's surface, by this administering method, it is possible to spray passage is altered on closure earth's surface easily and quickly.
To achieve these goals, alter spray administering method according to a kind of earth's surface provided by the invention, including step S20, under in the sleeve pipe treating node well that closure is administered, enter oil pipe；Step S30, is connected one end of surface line with described oil pipe, and junction is carried out pressure testing, does not leak if junction is not stung, then judge that oil pipe pressure test is qualified；Step S50, injects blocking agent to block node well by blocking agent in oil pipe.
Further, in step S20, the end of oil pipe is first connected with the sharp oil pipe of oblique 30 ° to 45 ° cuttings, then point oil pipe and oil pipe are together put into sleeve pipe.
Further, in step S20, the depth of setting of oil pipe is below oil reservoir lower surface 2 to 5m.
Further, in step s 30, pressure test pressure is between 10 to 15MPa.
Further, in step s 50, inject blocking agent and include: sub-step S51, clamp-on sealing agent；Sub-step S52, clamp-ons sealing compound.
Further, in step s 50, first carry out sub-step S51 when injecting blocking agent, then carry out sub-step S52.
Further, in step s 50, first carrying out sub-step S51, then carry out sub-step S52 when injecting blocking agent, hocket sub-step S51 and sub-step S52 afterwards, until blocking agent all injects oil pipe.
Further, in step s 50, inject blocking agent and also include sub-step S53, to injected clear water in oil pipe after blocking agent all injects oil pipe, the blocking agent remained in oil pipe is headed in stratum.
Further, earth's surface is altered spray administering method and is also included step S10, selects to treat the node well that closure is administered, the pretreatment before node well is blocked.
Further, in step slo, pretreatment includes node well is carried out drifting, checks that whether head valve, Pressure gauge be intact, and is taken out from node well by production oil pump.
Further, earth's surface is altered spray administering method step S40, step S40 and is carried out between step S30 and step S50, and step S40 includes that oil pipe carries out clear water and replaces operation.
Further, after step S50, earth's surface is altered spray administering method and is also included step S60, and closing well also waits that blocking agent solidifies.
Further, in step S60, the closed-in time is 42 to 48 hours.
Further, after step S50, earth's surface is altered spray administering method and is also included step S70, and detection blocks the node well after administering and according to whether testing result decision node well can normally produce.
Further, in step S70, node well carrying out small displacement injection test gas, observe gas injection pressure situation of change and specking is altered on earth's surface alters vapour situation, if steam injection pressure is stable and spray is no longer altered on earth's surface, then decision node well can normally produce.
Application technical scheme, it is provided that spray administering method is altered on a kind of earth's surface, enters oil pipe under in the node well treating closure improvement, and this oil pipe is carried out pressure testing, to guarantee that tubing seal is good, if oil pipe pressure test is qualified, in this oil pipe, then inject blocking agent, block this node well by blocking agent.So can effectively block node well, it is to avoid the continuation loss of the energy and resource, reduce or eliminate the potential safety hazard existed in production, reducing by altering the environmental pollution that spray causes.
Accompanying drawing explanation
The Figure of description constituting the part of the application is used for providing a further understanding of the present invention, and the schematic description and description of the present invention is used for explaining the present invention, is not intended that inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 illustrates that the flow chart of spray administering method is altered on earth's surface provided by the invention；
Fig. 2 illustrates the flow chart of embodiment provided by the invention.
Detailed description of the invention
It should be noted that when not conflicting, the embodiment in the application and the feature in embodiment can be mutually combined.Describe the present invention below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
As depicted in figs. 1 and 2, embodiments providing a kind of earth's surface and alter spray administering method, the method includes:
Step S20, treat closure administer node well sleeve pipe under enter oil pipe；
Step S30, is connected surface line with one end of oil pipe, and junction is carried out pressure testing, does not leak if junction is not stung, then judge that oil pipe pressure test is qualified；
Step S50, injects blocking agent to block node well by blocking agent in oil pipe.
A kind of earth's surface is provided to alter spray administering method by the present embodiment, when the node well altering spray is blocked, first treat under in the sleeve pipe of the node well that closure is administered and enter oil pipe, and this oil pipe is carried out pressure testing, to guarantee that tubing seal is good, if oil pipe pressure test is qualified, then in this oil pipe, injects blocking agent, block this node well by blocking agent.So can effectively block node well, it is to avoid the continuation loss of the energy and resource, reduce or eliminate the potential safety hazard existed in production, reducing by altering the environmental pollution that spray causes.
In the present embodiment, specifically, in step S20, the end of oil pipe is first connected with the sharp oil pipe of oblique 30 ° to 45 ° cuttings, then point oil pipe and oil pipe are together put into sleeve pipe.Sharp oil pipe in this angular range, using the end mark as tubing string bottom tool, and can pass through this point oil pipe as the instrument rinsing operation path.
Further, when implementing step S20,2 to 5 meters of of below oil reservoir lower surface under the end of oil pipe, can be entered, to ensure when carrying out closure operation, be blocked by sleeve bottom.
In the present embodiment, when implementing step S30, oil pipe is carried out the force value of pressure testing between 10 to 15MPa, when pressure test pressure is more than 10Mpa, if oil pipe exists crack and can quickly find；In order to improve pressure testing safety, reduce pressure testing cost, pressure test pressure value is arranged between 10 to 15MPa.
In the present embodiment, in order to effectively block node well, when implementing step S50, injection blocking agent is divided into sub-step S51 and sub-step S52.Wherein, S51 is for clamp-oning sealing agent, and S52 is for clamp-oning sealing compound.Owing to density and the intensity of sealing compound are above sealing agent, therefore, after clamp-oning sealing agent, add sealing compound, can effectively prevent sealing agent from overflowing in oil pipe, improve plugging strength.
Wherein, the mode clamp-oning blocking agent in oil pipe has multiple, after sub-step S51 can being performed, then perform sub-step S52 can complete closure operation；Also can first carrying out sub-step S51, then carry out sub-step S52, hocket sub-step S51 and sub-step S52 afterwards, until blocking agent all injects oil pipe.So it is alternately performed two sub-steps, it is possible to increase closure success rate, it is to avoid block after unsuccessfully and repeatedly block, waste material, increase closure cost.Specifically, the mode clamp-oning blocking agent can take different process meanses according to the difference altering spray channel type, stratum characteristic and casing programme, for instance, the size of pressure and discharge capacity that adjustable clamp-ons blocking agent carries out closure etc..So that blocking agent effectively condenses altering in spray passage, reach to block the purpose altering spray passage.
In the present embodiment, when performing step S50, also perform sub-step S53, after blocking agent all injects oil pipe, in oil pipe, namely inject a certain amount of clear water, make the blocking agent of residual in oil pipe all head in stratum.
Further, earth's surface provided by the invention is altered spray administering method and is also included step S10, before putting into oil pipe in node well, first this node well is blocked front pretreatment.Such as, node well is carried out drifting, whether intact check that instrument measured by head valve, Pressure gauge etc., and production oil pump is taken out from node well, to ensure being normally carried out of closure operation.
In the present embodiment, earth's surface is altered spray administering method and is also included step S40, step S40 and carry out between step S30 and step S50, and step S40 is specially and oil pipe carries out clear water replaces operation, can oil pipe and stratum be processed by this step S40.
Wherein, performing after step S50, earth's surface is altered spray administering method and is also included the node well that step S60, step S60 be specially completing after clamp-oning blocking agent operation and carry out closing well operation, and waits that blocking agent solidifies.In order to ensure that blocking agent fully solidifies, can closing well 42 to 48 hours.
After blocking agent solidifies, staff can perform step S70, and namely detection blocks the node well after administering and according to whether testing result decision node well can normally produce.Specifically, node well first can carrying out small displacement injection test gas, observe gas injection pressure situation of change and specking is altered on earth's surface alters vapour situation, if steam injection pressure is stable and spray is no longer altered on earth's surface, then decision node well can return to normal production.
Pass through the present embodiment, staff can administer for the node well altered on spray passage, reach closure, administer the effect of producing well, and different types of spray passage of altering can effectively be blocked by the method, solve earth's surface and alter potential safety hazard and the problem of environmental pollution that spray brings, the oil well that can not normally produce can be made after closure again to resume production, and sealing agent system has feature high temperature resistant, that intensity is high, after improvement, effect duration is 1 year, has higher reliability.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, any amendment of making, equivalent replacement, improvement etc., should be included within protection scope of the present invention.
Claims (15)
1. spray administering method is altered on an earth's surface, it is characterised in that including:
Step S20, treat closure administer node well sleeve pipe under enter oil pipe；
Step S30, is connected one end of surface line with described oil pipe, and junction is carried out pressure testing, does not leak if described junction is not stung, then judge that described oil pipe pressure test is qualified；
Step S50, injects blocking agent to block described node well by described blocking agent in described oil pipe.
2. spray administering method is altered on earth's surface according to claim 1, it is characterised in that in described step S20, and the end of described oil pipe is first connected with the sharp oil pipe of oblique 30 ° to 45 ° cuttings, then with described oil pipe, described point oil pipe is together put into described sleeve pipe.
3. spray administering method is altered on earth's surface according to claim 1, it is characterised in that in described step S20, and the depth of setting of described oil pipe is below oil reservoir lower surface 2 to 5m.
4. spray administering method is altered on earth's surface according to claim 1, it is characterised in that in described step S30, and pressure test pressure is between 10 to 15MPa.
5. spray administering method is altered on earth's surface according to claim 1, it is characterised in that in described step S50, injects blocking agent and includes:
Sub-step S51, clamp-ons sealing agent；
Sub-step S52, clamp-ons sealing compound.
6. spray administering method is altered on earth's surface according to claim 5, it is characterised in that in described step S50, first carries out described sub-step S51, then carry out described sub-step S52 when injecting blocking agent.
7. spray administering method is altered on earth's surface according to claim 5, it is characterized in that, in described step S50, first described sub-step S51 is carried out when injecting blocking agent, then described sub-step S52 is carried out, hocket described sub-step S51 and described sub-step S52 afterwards, until described blocking agent all injects described oil pipe.
8. spray administering method is altered on earth's surface according to claim 1, it is characterized in that, in described step S50, inject blocking agent and also include sub-step S53, to injected clear water in described oil pipe after described blocking agent all injects described oil pipe, the described blocking agent remained in oil pipe is headed in stratum.
9. spray administering method is altered on earth's surface according to any one of claim 1 to 8, it is characterised in that described earth's surface is altered spray administering method and also included step S10, selects to treat the node well that closure is administered, the pretreatment before described node well is blocked.
10. spray administering method is altered on earth's surface according to claim 9, it is characterized in that, in described step S10, described pretreatment includes described node well is carried out drifting, check that whether head valve, Pressure gauge be intact, and production oil pump is taken out from described node well.
11. spray administering method is altered on earth's surface according to any one of claim 1 to 8, it is characterized in that, described earth's surface is altered spray administering method and is also included step S40, described step S40 carries out between described step S30 and described step S50, and described step S40 includes that described oil pipe carries out clear water and replaces operation.
12. spray administering method is altered on earth's surface according to any one of claim 1 to 8, it is characterised in that after described step S50, described earth's surface is altered spray administering method and is also included step S60, and closing well also waits that described blocking agent solidifies.
13. spray administering method is altered on earth's surface according to claim 12, it is characterised in that in described step S60, the closed-in time is 42 to 48 hours.
14. spray administering method is altered on earth's surface according to any one of claim 1 to 8, it is characterized in that, after described step S50, described earth's surface is altered spray administering method and is also included step S70, and detection blocks the described node well after administering and judges whether described node well can normally produce according to testing result.
15. spray administering method is altered on earth's surface according to claim 14, it is characterized in that, in described step S70, described node well is carried out small displacement injection test gas, that observes that gas injection pressure situation of change and earth's surface alter specking alters vapour situation, if steam injection pressure is stable and spray is no longer altered on earth's surface, then judge that described node well can normally produce.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410806645.4A CN105781533A (en) | 2014-12-22 | 2014-12-22 | Ground surface blowing and spraying treatment method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410806645.4A CN105781533A (en) | 2014-12-22 | 2014-12-22 | Ground surface blowing and spraying treatment method |
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| CN105781533A true CN105781533A (en) | 2016-07-20 |
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| CN201410806645.4A Pending CN105781533A (en) | 2014-12-22 | 2014-12-22 | Ground surface blowing and spraying treatment method |
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| CN102373914A (en) * | 2010-08-25 | 2012-03-14 | 中国石油天然气股份有限公司 | Deep profile control method for fractured oil reservoir |
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| WO2014117848A1 (en) * | 2013-01-31 | 2014-08-07 | Statoil Petroleum As | A method of pressure testing a plugged well |
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2014
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| CN1888374A (en) * | 2005-06-28 | 2007-01-03 | 中国石油天然气股份有限公司 | High-temperature and High-Salt resisting gel water packing-off method |
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| CN101638979A (en) * | 2008-07-31 | 2010-02-03 | 陕西海天石油科技有限公司 | Technology for water shutoff, leaking stoppage and secondary well cementation of oil-water wells |
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Application publication date: 20160720 |
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