CN1083561A - Process for producing casing of oil-pumping well - Google Patents
Process for producing casing of oil-pumping well Download PDFInfo
- Publication number
- CN1083561A CN1083561A CN 92110233 CN92110233A CN1083561A CN 1083561 A CN1083561 A CN 1083561A CN 92110233 CN92110233 CN 92110233 CN 92110233 A CN92110233 A CN 92110233A CN 1083561 A CN1083561 A CN 1083561A
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- CN
- China
- Prior art keywords
- oil
- packer
- well
- casing
- screen casing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Abstract
A kind of process for producing casing that is applicable to viscous crude high yield pumpingh well, it is on original rod-pumped well production technology basis, tubing anchor and packer have been installed on oil well pump, one section screen casing is installed above the packer, oil stream enters a kind of process for producing casing that oil sets annular space is given rise to ground by screen casing during oil well pump work, and the resistance of oil stream mill is little, and the oil pumper polished rod load reduces, heat is washed Shi Buhui and is caused formation contaminant, and the oil pipe leakage can not influence production yet.
Description
The present invention relates to a kind of production technology of oilfield pumping well, be particularly useful for the production technology of viscous crude high yield rod-pumped well.
At present, the rod-pumped well production technology that the crowd knows is that the pumping unit horsehead on ground pumps, and the plunger that drives oil well pump by sucker rod moves back and forth, and underground crude oil is given rise to ground by the annular space between sucker rod and the oil pipe.But because the annular space cross-sectional area between sucker rod and the oil pipe is smaller, oil flow resistance is very big for the thick high-yield well of oil, causes the oil pumper polished rod load to increase, and the production of oil well is resulted in hand cramps; When oil well heat was washed, heat was washed medium and is entered the stratum easily and pollute and utilize many times suction heat to wash medium to form idle work; Oil pipe leakage the time forming oil stream enters the recurrent state that pump barrel is given rise to oil pipe again, and crude oil can not be given rise to ground from the oil pipe oil sets annular space that bleeds.
The present invention provides a kind of rod-pumped well production technology, and it not only can make in-place oil unimpededly be given rise to ground, and reduces the oil pumper polished rod load.Also helping oil well heat washes.Even the oil pipe leakage can not influence the oil well ordinary production yet.
The object of the present invention is achieved like this, and installation packer on oil well pump seals oil sets annular space, and with tubing anchor tubing anchor is fixed on the sleeve pipe.One section screen casing is installed on packer, oil pipe is communicated with the annular space on packer top, when oil well pump was worked, oil stream was given rise to ground by screen casing from oil sets annular space, reaches the purpose that sleeve pipe is produced.
Owing to adopt such scheme, can make oil stream be given rise to ground by the bigger oil sets annular space of cross-sectional area, the frictional resistance of oil stream is obviously reduced, the oil pumper polished rod load descends.During well-flushing, heat is washed medium and is clamp-oned in oil pipe, and the oil sets annular space that enters packer top by screen casing turns back to well head, has avoided heat to wash medium and has entered oil reservoir.Oil pipe is given rise to ground equally because of corroding or connecting the oil stream of tightly not missing in the oil sets annular space.When ordinary production, be crowded with thinner or paraffin remover in the oil pipe, can reach the viscosity reduction wax removal and reduce the effect that acts on frictional force on the sucker rod.
The present invention is further described below in conjunction with accompanying drawing.
Technological principle of the present invention is as shown in the figure:
Among the figure 1: oil pipe; 2: sucker rod; 3: sleeve pipe; 4: screen casing; 5: packer; 6: tubing anchor; 7: oil well pump.
In the drawings, tubing anchor (6) is installed in above the oil well pump (7), packer (5) is installed in above the tubing anchor (6), screen casing (4) is installed in above the packer (5), sucker rod (2) drives oil well pump (7) when pumping, oil stream enter oil pipe (1), and the annular space between the sleeve pipe (3) is given rise to ground by screen casing (4).
Claims (1)
- A kind of viscous crude high yield oil-pumping well sheath production technology is characterized in that:Tubing anchor and packer are housed above the oil well pump, one section screen casing is housed on packer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92110233 CN1083561A (en) | 1992-09-03 | 1992-09-03 | Process for producing casing of oil-pumping well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92110233 CN1083561A (en) | 1992-09-03 | 1992-09-03 | Process for producing casing of oil-pumping well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1083561A true CN1083561A (en) | 1994-03-09 |
Family
ID=4944697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92110233 Pending CN1083561A (en) | 1992-09-03 | 1992-09-03 | Process for producing casing of oil-pumping well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1083561A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106437537A (en) * | 2016-09-06 | 2017-02-22 | 中国石油化工股份有限公司 | Oil pumping tubular column with hot-washing paraffin removal function |
-
1992
- 1992-09-03 CN CN 92110233 patent/CN1083561A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106437537A (en) * | 2016-09-06 | 2017-02-22 | 中国石油化工股份有限公司 | Oil pumping tubular column with hot-washing paraffin removal function |
| CN106437537B (en) * | 2016-09-06 | 2019-04-26 | 中国石油化工股份有限公司 | A kind of pumping pipe string with hot-washing wax remover function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |