CN1295296C - Use of residual active sludge protein as foam drilling liquid and preparing method thereof - Google Patents
Use of residual active sludge protein as foam drilling liquid and preparing method thereof Download PDFInfo
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- CN1295296C CN1295296C CNB2004100132327A CN200410013232A CN1295296C CN 1295296 C CN1295296 C CN 1295296C CN B2004100132327 A CNB2004100132327 A CN B2004100132327A CN 200410013232 A CN200410013232 A CN 200410013232A CN 1295296 C CN1295296 C CN 1295296C
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- active sludge
- drilling fluid
- protein
- residual active
- foam drilling
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Abstract
The present invention relates to the application of residual active sludge protein as a foam drilling fluid and a preparation method thereof, i.e. the residual active sludge protein is used as a foaming agent for the foam drilling fluid by utilizing the foaming ability of the residual active sludge protein. The preparation method comprises the following steps: hydrolyzing active sludge for 2 to 6 hours at the temperature of 110 to 148 DEG C by an acid method or an alkali method, and removing impurities to obtain a protein fluid by filtration; preparing the PH of the impurity-removed protein fluid to alkalescence so as to obtain protein hydrolysate for preparing the foam drilling fluid; and preparing the foam drilling fluid by using the protein hydrolysate as the foaming agent. Because the present invention uses the active sludge protein hydrolysate as the foaming agent for the foam drilling fluid by utilizing the foaming ability of the residual active sludge protein, the present invention has the advantages of favorable foaming ability, high foaming capacity, wide material sources and low cost, and can generate a lot of foam after mixed with gas. The foam has the advantages of strong stability, strong antipollution performance, and favorable compatibility with stratum fluids and drilling fluids, can keep stable performance under the conditions of long-time circulation and high temperature, simultaneously can be completely degraded by microbes, and can not cause environmental pollution.
Description
Technical field
The present invention relates to application and the drilling fluid thereof of a kind of residual active sludge protein hydrolysate as foam drilling fluid.
Background technology
In the oil production drilling process, when boring low pressure oil gas-bearing formation, water-sensitive strata and leakiness and easily collapse the stratum, need to adopt foam drilling fluid to prevent that seepage from subsiding.Whipping agent is the key of foam drilling fluid, and now the whipping agent of foam drilling fluid is commonly used sodium alkyl benzene sulfonate, C12-20 alkylsulfonate and A-alkene sulfonate.These whipping agents are all owing to containing a large amount of sulfonic groups, easily soil, water quality etc. is caused environmental pollution during use, under the High Temperature High Pressure situation, can decomposite hydrogen sulfide simultaneously, cause the drilling tool hydrogen embrittlement fracture, both dangerous, can influence HUMAN HEALTH and contaminate environment again.And good whipping agent must have following characteristics: lathering property is good, and gas release is big, base fluid with can produce a large amount of foams after gas contacts; Froth stability is strong, can be in stable performance under for a long time circulation and the hot conditions, and antifouling property is strong, and is good with resident fluid and working fluid compatibleness, the chemical agent stable performance; Zero pour is low, has biodegradability, and toxicity is little; Preparation foam base fluid consumption is few, and the source is wide, and cost is low; The whipping agent oleophilic hydrophil balance value is in the 9-15 scope.
Summary of the invention
Technical problem to be solved by this invention is: provide a kind of lathering property good, non-environmental-pollution, high temperature resistant and with low cost the drilling fluid whipping agent---the residual active sludge protein hydrolysate is as the application and the drilling fluid thereof of foam drilling fluid.
The technical scheme that the present invention solves its technical problem is: the residual active sludge protein hydrolysate is as the application of foam drilling fluid, and the residual active sludge protein hydrolysate is as the application of foam drilling fluid whipping agent specifically.
The residual active sludge protein hydrolysate is as the preparation method of foam drilling fluid, be the active sludge acid system: promptly adding acid accent PH is 1.0-3.0, in temperature is under 110 ℃ of-148 ℃ of conditions hydrolysis 2-6 hour, filtering and impurity removing matter gets protein liquid, the protein liquid behind the decon is transferred PH to 7.6-8.2 promptly to become as the protein hydrolysate for preparing foam drilling fluid again; Or use alkaline process, and promptly adding alkali, to transfer PH be 11-13, is under 110 ℃ of-148 ℃ of conditions hydrolysis 2-6 hour in temperature, filtering and impurity removing matter gets protein liquid, the protein liquid behind the decon is transferred PH to 7.6-8.2 promptly to become protein hydrolysate as the preparation foam drilling fluid again.
Above-mentioned used acid is hydrochloric acid or sulfuric acid, and alkali is sodium hydroxide or lime.
A kind of foam drilling fluid is made up of the raw material of following weight parts:
Tackifier 0.4, stablizer 0.2, whipping agent 4, tackifier are Walocel MT 20.000PV, and stablizer is a polyacrylamide, and whipping agent is the residual active sludge protein hydrolysate.
Another kind of foam drilling fluid is made up of the raw material of following weight parts:
Wilkinite 5, tackifier 0.1, stablizer 0.2, whipping agent 0.5; Tackifier are Walocel MT 20.000PV, and stablizer is a polyacrylamide, and whipping agent is the residual active sludge protein hydrolysate.
A kind of foam drilling fluid is made up of the raw material of following weight parts:
Tackifier 0.4, stablizer 0.2, whipping agent 4, tackifier are Walocel MT 20.000PV (model MV-CMC), and stablizer is polyacrylamide (model PAM), and whipping agent is the residual active sludge protein hydrolysate.
Another kind of foam drilling fluid is made up of the raw material of following weight parts:
Wilkinite 5, tackifier 0.1, stablizer 0.2, whipping agent 0.5; Tackifier are Walocel MT 20.000PV (model MV-CMC), and stablizer is polyacrylamide (model PAM), and whipping agent is the residual active sludge protein hydrolysate.
The present invention utilizes the proteinic foaming character of residual active sludge, and with the whipping agent of active sludge protein hydrolysate as foam drilling fluid, its lathering property is good, and gas release is big, base fluid with can produce a large amount of foams after gas contacts; Froth stability is strong, can be in stable performance under for a long time circulation and the hot conditions, and antifouling property is strong, and is good with resident fluid and working fluid compatibleness; Can be degraded by Institute of Micro-biology fully, can not pollute environment; The source is wide, and cost is low (to be utilized the residual active sludge that produces in the municipal sewage treatment process again.Domestic food plant effuent, fermentation plant sewage, city domestic sewage all have a large amount of active sludge to produce at present, its treatment process is to sell with the mud landfill or as fertilizer mostly, because heavy metal content is too high, no matter be landfill or all can pollute to environment as fertilizer.Hydrolysed residual active sludge can get a large amount of protein hydrolysates, extracts protein liquid from residual active sludge, and raw materials cost is zero substantially, and extraction process simply make foam drilling fluid one-tenth with this protein should be very low, product cheap.)
Embodiment
Embodiment 1: it is 1.0-3.0 that active domestic sludge 100kg is added hydrochloric acid accent PH, in temperature is under 110 ℃ of-148 ℃ of conditions hydrolysis 2-6 hour, filtering and impurity removing matter gets protein liquid, again the protein liquid hydro-oxidation sodium behind the decon is transferred PH to 7.6-8.2 get final product 60kg residual active sludge protein hydrolysate.
With tackifier (Walocel MT 20.000PV) 0.4kg, stablizer (polyacrylamide) 0.2kg, whipping agent (residual active sludge protein hydrolysate) 4kg is mixed with foam drilling fluid.
Embodiment 2: it is 11-13 that active domestic sludge 100kg is added lime accent PH, in temperature is under 110 ℃ of-148 ℃ of conditions hydrolysis 2-6 hour, filtering and impurity removing matter gets protein liquid, the protein molten sulfur behind decon acid is transferred PH to 7.6-8.2 to get final product to such an extent that 60kg is used to prepare the residual active sludge protein hydrolysate of foam drilling fluid again.
With wilkinite 5kg, tackifier (Walocel MT 20.000PV) 0.1kg, stablizer (polyacrylamide) 0.2kg, whipping agent (residual active sludge protein hydrolysate) 0.5kg; Be mixed with foam drilling fluid.
Claims (3)
1, the residual active sludge protein hydrolysate is as the application of foam drilling fluid.
2, a kind of foam drilling fluid by the preparation of residual active sludge protein hydrolysate, it is characterized in that described foam drilling fluid is made up of the raw material of following weight parts: tackifier 0.4, stablizer 0.2, whipping agent 4, tackifier are Walocel MT 20.000PV, stablizer is a polyacrylamide, and whipping agent is the residual active sludge protein hydrolysate.
3, a kind of foam drilling fluid by residual active sludge protein hydrolysate preparation is characterized in that described foam drilling fluid is made up of the raw material of following weight parts: wilkinite 5, tackifier 0.1, stablizer 0.2, whipping agent 0.5; Tackifier are Walocel MT 20.000PV, and stablizer is a polyacrylamide, and whipping agent is the residual active sludge protein hydrolysate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100132327A CN1295296C (en) | 2004-05-28 | 2004-05-28 | Use of residual active sludge protein as foam drilling liquid and preparing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100132327A CN1295296C (en) | 2004-05-28 | 2004-05-28 | Use of residual active sludge protein as foam drilling liquid and preparing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1583940A CN1583940A (en) | 2005-02-23 |
| CN1295296C true CN1295296C (en) | 2007-01-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100132327A Expired - Fee Related CN1295296C (en) | 2004-05-28 | 2004-05-28 | Use of residual active sludge protein as foam drilling liquid and preparing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1295296C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100402449C (en) * | 2006-05-15 | 2008-07-16 | 武汉市城市排水发展有限公司 | Production technology of preparing aminosal using hydrolysed residual active sludge by quick lime and its equipment |
| CN101767953B (en) * | 2010-03-11 | 2012-07-25 | 李珠 | Novel thermal insulation mortar foaming agent and preparation method thereof |
| CN102952529B (en) * | 2011-08-30 | 2015-03-11 | 中国石油化工股份有限公司 | Solid-phase-free water-based microbubble drilling fluid |
| CN102775218A (en) * | 2012-08-14 | 2012-11-14 | 天津市裕川微生物制品有限公司 | Method for preparing plant nutrient solution from sludge microproteins |
| CN109956735B (en) * | 2017-12-14 | 2021-12-28 | 内蒙古阜丰生物科技有限公司 | Preparation method of light wave-absorbing aerated brick |
| CN109942272A (en) * | 2017-12-21 | 2019-06-28 | 卢松 | High-intensitive aerated bricks and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1243102A (en) * | 1999-05-26 | 2000-02-02 | 中国科学院生态环境研究中心 | Technology and device for removing organic component from oil-field well-drilling waste water |
| CN1369445A (en) * | 2002-03-22 | 2002-09-18 | 邵胜学 | Process for treating sewage to generate active mud and extract protein |
| CN1456372A (en) * | 2003-04-18 | 2003-11-19 | 湖北大学 | Preparing for protein foam fire-extinguisher by active sludge protein |
-
2004
- 2004-05-28 CN CNB2004100132327A patent/CN1295296C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1243102A (en) * | 1999-05-26 | 2000-02-02 | 中国科学院生态环境研究中心 | Technology and device for removing organic component from oil-field well-drilling waste water |
| CN1369445A (en) * | 2002-03-22 | 2002-09-18 | 邵胜学 | Process for treating sewage to generate active mud and extract protein |
| CN1456372A (en) * | 2003-04-18 | 2003-11-19 | 湖北大学 | Preparing for protein foam fire-extinguisher by active sludge protein |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1583940A (en) | 2005-02-23 |
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