CN1050036A - Clay-free drilling fluid and production method thereof - Google Patents
Clay-free drilling fluid and production method thereof Download PDFInfo
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- CN1050036A CN1050036A CN 90108075 CN90108075A CN1050036A CN 1050036 A CN1050036 A CN 1050036A CN 90108075 CN90108075 CN 90108075 CN 90108075 A CN90108075 A CN 90108075A CN 1050036 A CN1050036 A CN 1050036A
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- drilling fluid
- dry powder
- sri lanka
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- glue
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Abstract
The present invention is a kind of wellbore flushing liquid that is used for drilling project troublesome zone drilling guard aperture, is to mix the back by polysaccharide polymer vegetable jelly dry powder that contains protein, fat and water to form the hydrophilic colloid slurry that hydrophilic colloid combines with the water glass hydrophilic colloid again.In glued poor stratum of loose crushing and water-sensitive strata, creep into; can on hole wall, form one deck and have toughness and elastic semipermeability protection glued membrane; and its fluid loss is very low, thereby has good retaining wall and protect the core effect, has improved rheological property and row's powder ability simultaneously.
Description
The invention belongs to the drilling liquid technology field, be specifically related to a kind of aqueous fluid and its production method that contains organism and inorganics.
Drilling well stream technology is one of modern five big drilling new technologies, and it can play direct raising drilling efficiency, drilling quality and minimizing drilling accident, reduces the effect of drilling cost.
As everyone knows, vegetable jelly or water glass are widely used for probing production as mud conditioner separately.Vegetable jelly adds alkali or adds other additives again, as Chinese patent literature CN85109485A(is basic raw material with the sesbania gum powder, uniform dissolution is in water, add the soluble inorganic salt and the sodium hydroxide that contain zinc, potassium ion, be made into wellbore flushing liquid), the crosslinked clay-free drilling fluid that is used as also has use, but all there is following deficiency in they:
1, the viscosity variable range is little, and peak viscosity can only reach 42 seconds;
2, the toughness of mud skin or glued membrane, poor flexibility, intensity is low;
3, carry and the ability of the rock dust that suspends not good.
The objective of the invention is to overcome the deficiencies in the prior art, the production method of the good DRILLING FLUID FORMULATION of a kind of use properties and this drilling fluid is provided.
We find to contain protein, fatty polysaccharide polymer vegetable jelly is compared with the slurries that vegetable jelly that only contains polysaccharide polymer and water glass combine with the slurries that water glass combines, and the former retaining capacity strengthens, and carry gluing with the precipitation effect also strengthening.This be because protein under the water glass effect, resolve into amino acid, wherein amino is strong adsorption group, can strengthen and hole wall rock and core between adsorption, thereby promoted the formation of glued membrane and improved its intensity.Fat and water glass interaction energy generation-COONa group, thereby the hydration of having promoted slurries.Not only should contain polysaccharide polymer so be used to prepare the vegetable jelly of premium drilling fluid, and protein and fat also are its neccessary compositions.Purpose of the present invention just is being based on above-mentioned principle and is realizing.
Drilling fluid of the present invention is to mix the back by polysaccharide polymer vegetable jelly dry powder that contains protein, fat and water to form the hydrophilic colloid slurry that hydrophilic colloid combines with the water glass hydrophilic colloid again.
Drilling fluid of the present invention preferably contains (weight ratio): contain the polysaccharide polymer glue dry powder 0.5-1% of protein, fat, and the water glass glue 3～5% of modulus 2.6～3.3, concentration 35～45 degree Beaume, surplus is a water.
The used vegetable jelly dry powder of the present invention is preferably a kind of in the glue dry powder of following five kind of plant or several:
1, red Sri Lanka Pouzolzia Herb (pouzolzia ranguinea(Bl.) Merr)
1, graceful Sri Lanka Pouzolzia Herb (pouzolzia elegans Wedd)
3, pueraria omeiensis Wang et Tang (pueraria omeinsis Wang et tang)
4, Herba Gonostegiae Hirtae (grass) (mimorialis hirta(Bl.) Wedd)
5, Root and stem of Cholla (opuntia dillenii(ker) Haw
After can liquefying separately, red Sri Lanka Pouzolzia Herb and graceful Sri Lanka Pouzolzia Herb glue dry powder makes up with the water glass glue, also can be red Sri Lanka Pouzolzia Herb and pueraria omeiensis Wang et Tang or red Sri Lanka Pouzolzia Herb and Glutene Rice Grass, or red Sri Lanka Pouzolzia Herb and Root and stem of Cholla, or graceful Sri Lanka Pouzolzia Herb and pueraria omeiensis Wang et Tang, or graceful Sri Lanka Pouzolzia Herb and Glutene Rice Grass, or the glue dry powder balanced mix of graceful Sri Lanka Pouzolzia Herb and Root and stem of Cholla makes up (glue dry powder total amount still accounts for the 0.5-1% of drilling fluid gross weight) with the water glass glue again after liquefaction.
The key of the production method of drilling fluid of the present invention is earlier vegetable jelly dry powder to be added water and is liquefied as behind the colloid and water glass colloid compounded combination again, its concrete way is preferably mixed vegetable jelly dry powder earlier at normal temperatures and pressures and is stirred that to be mixed with concentration in 20～30 minutes be the hydrophilic colloid of 0.5-1% and soak more than half an hour with water, add that to account for gross weight be 3～5% water glass glue mixing stirring 10-20 minute again.
The making processes of glue dry powder can be: root of plant or stem through select materials → cut into slices → dry → pulverize → sieve → solid-state dry powder → packing.
Compare with prior art, drill-in fluid of the present invention has following advantage:
1, the viscosity variable range by 22 seconds to more than 80 seconds.Not only can be used for retaining wall and can be used for leak stopping.
2, can form one deck on hole wall and core and have toughness and elastic semipermeability protective membrane, retaining wall and guarantor's core effect are better than the drilling fluid of other types.
3, the rheological of slurries and shear thinning are made good use of, and have sliding capability, and hole wall is not had souring, help the raising of drilling efficiency again.
4, carry and the ability of the rock dust that suspends is better than the drilling fluid of other types.
The present invention can be used as the loose crushing hole wall, easily collapses and water-swellable undergauge hole wall, the geological machinery core drilling of unsteady water-sensitive strata and the wellbore flushing liquid of hydrogeological engineering geological drilling.The present invention also can be used as mud conditioner, only needs to add in low solid mud about 5% drilling fluid of the present invention, mud property just can be improved significantly.
Embodiment: drilling fluid composition is (weight ratio): glue dry powder 0.5%, and modulus 2.6～3.3, the water glass glue 4% of concentration 35～45 degree Beaume, surplus is a water.Glue dry powder is red Sri Lanka Pouzolzia Herb.It is 1 hour that glue dry powder adds water stirring back soak time.
With the drill-in fluid of present embodiment two ZK802 of unit of 309 teams of southwestern nonferrous metals geology exploration company carry out the hole take temperature bright, with the PHP(hydro-polyacrylamide) low solid mud compares:
The efficiency of rig-month improves 10～30%;
Shot drilling hour efficient improves 10%;
Alloy creeps into hour efficient and improves 30%;
Diamond drilling hour efficient improves 40%;
Casualty ratio of accidents is reduced to 2.4% by 10% in the well.
, in each hole section drilling process of 0～360m, can be outside 3.6 the whole outlet orifices of pyritic ashes with proportion, and can in settler and circulation groove, precipitate rapidly in the ZK802 hole.135 meters to 205 meters with 70 meters of φ 110mm drill bit reamings, can be outside the whole rock dust and pyritic ashes evacuation aperture that reaming produced, expansion finishes to get into the end, sleeve pipe also on earth once under the back.
Claims (7)
1, a kind of clay-free drilling fluid is characterized in that: it is to mix the back by polysaccharide polymer vegetable jelly dry powder that contains protein, fat and water to form the slurries that hydrophilic colloid combines with the water glass hydrophilic colloid again.
2, drilling fluid as claimed in claim 1 is characterized in that this drilling fluid is (weight ratio): glue dry powder 0.5-1%, and the water glass glue 3～5% of modulus 2.6～3.3, concentration 35～45 degree Beaume, surplus is a water.
3, drilling fluid as claimed in claim 2 is characterized in that the glue dry powder that used vegetable jelly dry powder is following five kind of plant:
A, red Sri Lanka Pouzolzia Herb (pouzolzia ranguinea(Bl.) Merr)
B, graceful Sri Lanka Pouzolzia Herb (pouzolzia elegans Wedd)
C, pueraria omeiensis Wang et Tang (pueraria omeinsis Wang et tang)
D, Herba Gonostegiae Hirtae (grass) (mimorialis hirta(Bl.) Wedd)
E, Root and stem of Cholla (opuntia dillenii(ker) Haw)
4, drilling fluid as claimed in claim 3 is characterized in that: make up with the water glass glue after red Sri Lanka Pouzolzia Herb or graceful Sri Lanka Pouzolzia Herb glue dry powder liquefy separately.
5, drilling fluid as claimed in claim 3, it is characterized in that: red Sri Lanka Pouzolzia Herb and pueraria omeiensis Wang et Tang or red Sri Lanka Pouzolzia Herb and Glutene Rice Grass or red Sri Lanka Pouzolzia Herb and Root and stem of Cholla or graceful Sri Lanka Pouzolzia Herb and pueraria omeiensis Wang et Tang or graceful Sri Lanka Pouzolzia Herb and Glutene Rice Grass, or the glue dry powder balanced mix of graceful Sri Lanka Pouzolzia Herb and Root and stem of Cholla makes up with the water glass glue after liquefaction again.
6, the production method of clay-free drilling fluid as claimed in claim 1 is characterized in that earlier vegetable jelly dry powder being added water and is liquefied as behind the colloid and water glass colloid compounded combination again.
7, the production method of clay-free drilling fluid as claimed in claim 6, it is characterized in that: earlier vegetable jelly dry powder is mixed with water at normal temperatures and pressures and stir that to be mixed with concentration in 20～30 minutes be the hydrophilic colloid of 0.5-1% and soak more than half an hour, add again that to account for gross weight be 3～5% water glass glue mixing stirring 10-20 minute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90108075 CN1027594C (en) | 1990-09-22 | 1990-09-22 | Solid-phase free drilling liquor and its production process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90108075 CN1027594C (en) | 1990-09-22 | 1990-09-22 | Solid-phase free drilling liquor and its production process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1050036A true CN1050036A (en) | 1991-03-20 |
| CN1027594C CN1027594C (en) | 1995-02-08 |
Family
ID=4880832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90108075 Expired - Fee Related CN1027594C (en) | 1990-09-22 | 1990-09-22 | Solid-phase free drilling liquor and its production process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1027594C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1063474C (en) * | 1993-05-28 | 2001-03-21 | 挪威国家石油公司 | Plugging liquid for plugging a subterranean formation zone |
| CN102220113A (en) * | 2010-04-16 | 2011-10-19 | 长江大学 | Solid phase-free drilling-in liquid |
| CN106854460A (en) * | 2016-12-11 | 2017-06-16 | 闫博文 | A kind of method that high temperature resistant ultra-fine grain latex prepares sealing agent |
| CN108005610A (en) * | 2017-10-13 | 2018-05-08 | 中国煤炭地质总局第勘探局 | Deep drilling retaining wall leak-stopping technique |
| CN108165243A (en) * | 2017-12-29 | 2018-06-15 | 四川共拓新材料股份有限公司 | Konjac glucomannan/sodium alginate Solid Free composite drill well liquid and preparation method thereof |
-
1990
- 1990-09-22 CN CN 90108075 patent/CN1027594C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1063474C (en) * | 1993-05-28 | 2001-03-21 | 挪威国家石油公司 | Plugging liquid for plugging a subterranean formation zone |
| CN102220113A (en) * | 2010-04-16 | 2011-10-19 | 长江大学 | Solid phase-free drilling-in liquid |
| CN106854460A (en) * | 2016-12-11 | 2017-06-16 | 闫博文 | A kind of method that high temperature resistant ultra-fine grain latex prepares sealing agent |
| CN108005610A (en) * | 2017-10-13 | 2018-05-08 | 中国煤炭地质总局第勘探局 | Deep drilling retaining wall leak-stopping technique |
| CN108165243A (en) * | 2017-12-29 | 2018-06-15 | 四川共拓新材料股份有限公司 | Konjac glucomannan/sodium alginate Solid Free composite drill well liquid and preparation method thereof |
| CN108165243B (en) * | 2017-12-29 | 2021-06-04 | 四川共拓新材料股份有限公司 | Konjac gum/sodium alginate solid-phase-free composite drilling fluid and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1027594C (en) | 1995-02-08 |
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