JPH01299889A - Modifier of clay for digging - Google Patents

Modifier of clay for digging

Info

Publication number
JPH01299889A
JPH01299889A JP13118888A JP13118888A JPH01299889A JP H01299889 A JPH01299889 A JP H01299889A JP 13118888 A JP13118888 A JP 13118888A JP 13118888 A JP13118888 A JP 13118888A JP H01299889 A JPH01299889 A JP H01299889A
Authority
JP
Japan
Prior art keywords
water
clay
modifier
acrylamide
copolymer
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.)
Granted
Application number
JP13118888A
Other languages
Japanese (ja)
Other versions
JPH064846B2 (en
Inventor
Hiroshi Nishiguchi
宏 西口
Masaru Murata
勝 村田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DKS Co Ltd
Original Assignee
Dai Ichi Kogyo Seiyaku Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Dai Ichi Kogyo Seiyaku Co Ltd filed Critical Dai Ichi Kogyo Seiyaku Co Ltd
Priority to JP13118888A priority Critical patent/JPH064846B2/en
Publication of JPH01299889A publication Critical patent/JPH01299889A/en
Publication of JPH064846B2 publication Critical patent/JPH064846B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Compositions Of Macromolecular Compounds (AREA)

Abstract

PURPOSE:To attain improvement of salt resisting properties, by incorporating Ramsan gum or a mixture of the same with another water soluble polymer. CONSTITUTION:A clay for digging is mixed with 0.01-1wt.% Ramsan gum of the formula (wherein M<+> is Na, Ca, K, etc.) optionally together with 0.01-1wt.% water soluble polymer selected from CMC, a copolymer of acrylamide with acrylic acid and a copolymer of acrylamide with another copolymerizable vinyl monomer.

Description

【発明の詳細な説明】 (産業上の利用分野) 本発明は1石油ボニリング用泥水に使用する粘土類(ベ
ントナイト等)を改質する方法に関するものである。
DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for modifying clays (bentonite, etc.) used in mud for petroleum bonilling.

(従来の技術) 従来のベントナイト改質剤としては1例えば。(Conventional technology) For example, 1 is a conventional bentonite modifier.

特公昭57−29504等に記載されているように、ポ
リアクリル酸、ポリ(ビニルアセテート−マレイン酸無
水物)、ポリ(エチレン−マレイン酸無水物)、ポリ(
ビニルメチルエーテル−マレインa無水物)等のカルボ
ン酸含[120〜100モ号%の合成ポリマーが使用さ
れる。
As described in Japanese Patent Publication No. 57-29504, etc., polyacrylic acid, poly(vinyl acetate-maleic anhydride), poly(ethylene-maleic anhydride), poly(
Synthetic polymers containing carboxylic acid (120 to 100 mole %) such as vinyl methyl ether (maleic anhydride) are used.

しかしながら、このような従来の力をボン酸含有ポリマ
ーにあっては、カルボン酸が改質の根拠となっていたた
め、上記薬剤で改質された掘削用粘土類は耐塩性が不良
であった。
However, in the case of conventional polymers containing carbonic acid, carboxylic acid was the basis for modification, and therefore, excavation clays modified with the above-mentioned chemicals had poor salt resistance.

特に石−油ポーリング掘削においては、使用される水が
必ずしも純水てなく、又、岩塩層を掘削する時にはNa
Cj!たけでなく、Ca l ’ 、 M g * *
等の2価塩も多量に混入し、泥水を汚染する。
Particularly in oil-oil poling drilling, the water used is not necessarily pure water, and when drilling into rock salt layers, Na
Cj! Not only that, but also Cal', Mg * *
A large amount of divalent salts such as salts are mixed in and contaminate the muddy water.

掘削用粘土類を調整するに当っては、各種要求に対応す
ることが必要、となり、清水ばかりでなく、塩水に対し
ても有効であることがより望ましい。
When preparing clay for excavation, it is necessary to meet various requirements, and it is more desirable that it be effective not only for fresh water but also for salt water.

従来のカルボン酸含有ポリマーでは上記問題に対しては
無効であり、清水使用の場合においてのみ有効であると
いう問題点があった。
Conventional carboxylic acid-containing polymers are ineffective against the above problems and are only effective when using fresh water.

(発明が解決しようとする課題) 以上の現状に鑑み1本発明が解決しようとする課題は、
ta削用粘土類を調整するに当って、清水ばかりでなく
塩水に対しても有効である掘削粘土類の改質剤を提供す
ることである。
(Problems to be solved by the invention) In view of the above-mentioned current situation, one problem to be solved by the present invention is:
To provide a modifier for excavating clay that is effective not only for fresh water but also for salt water in preparing clay for excavating.

(課題を解決するための手段) この発明は、このような従来の問題点に着目してなされ
たものである。すなわち、ラムザンガム単独、又は、ラ
ムザンガムと他の水溶性ポリマーを用いて掘削用に使用
する粘土類を改質する方法を見い出した。
(Means for Solving the Problems) The present invention has been made by focusing on such conventional problems. That is, we have discovered a method of modifying clays used for excavation using Ramsan gum alone or Ramsan gum and other water-soluble polymers.

掘削用に使用する粘土類に対し。For clays used for excavation.

■ラムザンガム0.01〜1重量% 又は ■ラムザンガム0.01〜1重量%及び■他の水溶性ポ
リマー0.01〜1重量%を併用する。
(2) 0.01-1% by weight of Ramsan gum or (2) 0.01-1% by weight of Ramsan gum and (2) 0.01-1% by weight of other water-soluble polymers.

本発明に使用するラムザンガムは醗酵多糖類であり、微
生物Alcaligenes  spe −cies、
ATCC31961(Americ−an  Type
  Cu1ture  Co11e−ctionに登録
されたNo、)がグルコースを醗酵させてその菌体外に
蓄積した多糖類を、精製し粉末にした天然ガム質である
。その化学構造は、2個のグルコースより構成されてい
る。
Ramzan gum used in the present invention is a fermented polysaccharide, and is produced by microorganisms Alcaligenes spe-cies,
ATCC31961 (American-an Type
It is a natural gum substance made by fermenting glucose and accumulating the polysaccharide outside the bacterial cells, which is purified and powdered. Its chemical structure is composed of two glucose units.

(M◆はナトリウム、カルシウム。(M◆ is sodium and calcium.

ラムザンガムに併用できる他の水溶性ポリマートしては
、 a、CMC(カルボキシメチルセルロース)。
Other water-soluble polymers that can be used in combination with Ramsan gum include: a. CMC (carboxymethyl cellulose).

b、アクリルアミドとアクリル酸との共重合ポリマー C,アクリルアミドと共重合可能なその他のビニル七ツ
マ−との共重合体 等が掲げられる。
b, a copolymer C of acrylamide and acrylic acid, a copolymer C of acrylamide and other vinyl heptamers which can be copolymerized, and the like.

ラムザンガムは単独でも充分効果を有するが。Ramsan gum alone is effective enough.

他の水溶性ポリマーを併用しても良い。Other water-soluble polymers may be used in combination.

本発明改質剤は通常の方法で粘土と共に配合し、泥水を
調整すればよい。
The modifier of the present invention may be mixed with clay in a conventional manner to prepare muddy water.

(作用) 本方法は塩水系システムにおいても増粘し、従来のカル
ボン酸含有薬剤では達成できないFL値を小さくするこ
とができ1品質の劣るベントナイトに少量添加すること
により、泥水調整時のマッド特性値を改良できる。
(Effect) This method increases the viscosity even in saltwater systems, and can reduce the FL value that cannot be achieved with conventional carboxylic acid-containing chemicals. 1. By adding a small amount to inferior quality bentonite, mud properties when adjusting muddy water. Values can be improved.

(実施例) 次に実施例を挙げて本発明を説明するが、本発明はこれ
ら実施例に限定されるものではない、実施例中の%は重
量基準で表わす。
(Examples) Next, the present invention will be explained with reference to Examples, but the present invention is not limited to these Examples. The percentages in the Examples are expressed on a weight basis.

実施例1 ベントナイト八に薬剤0.2%量を均−混合後、4%N
aCJl水に調整後のベン上ナイト4%量を懸濁して泥
水を調整した。
Example 1 After uniformly mixing 0.2% of the drug with bentonite, 4% N
Mud water was prepared by suspending 4% of the adjusted bennite in aCJl water.

(以下余白) PAM:ポリアクリルアミドの25%加水分解率1分子
量1000万 CMC: 1%粘度3000CP、エーテル化度0.8
5のカルボキシメチルセルロー スHa 本AV、FL:APIの方法による。AVは見かけ粘度
(CP)、FLは濾水 量(ml)。
(Left below) PAM: 25% hydrolysis rate of polyacrylamide 1 molecular weight 10 million CMC: 1% viscosity 3000CP, degree of etherification 0.8
Carboxymethylcellulose Ha of No. 5 According to the method of this AV, FL: API. AV is apparent viscosity (CP), and FL is free water volume (ml).

発明例の1.2.3は比較例に比して得られた泥水のA
V値、及びFL値が良好である。
1.2.3 of the invention example is A of the muddy water obtained compared to the comparative example.
Good V value and FL value.

実施例2 ベントナイトBに薬剤0.1%量を均一に混合後、本ベ
ントナイト4%量を〔30%NaCjL+1%CaCJ
L2+t%MgCJL2)を組成とする塩水に対して懸
濁させて泥水を調整した。
Example 2 After uniformly mixing 0.1% of the drug into bentonite B, 4% of this bentonite was added to [30% NaCjL + 1% CaCJ
Mud water was prepared by suspending it in salt water having a composition of L2+t%MgCJL2).

(以下余白) PAM:ポリアクリルアミドの25%加水分解率、分子
量1000万 CMC:1%粘度3000CP、エーテル化度0.85
のカルボキシメチルセルロー スNa 本AV、FLは実施例1と同じ。
(Left below) PAM: 25% hydrolysis rate of polyacrylamide, molecular weight 10 million CMC: 1% viscosity 3000CP, degree of etherification 0.85
Carboxymethylcellulose Na This AV and FL are the same as in Example 1.

発明例の1.2.3は比較例に比して得られた泥水のA
V値、及びFL値が良好である。
1.2.3 of the invention example is A of the muddy water obtained compared to the comparative example.
Good V value and FL value.

、(発明の効果) 以上説明した通り、本発明により掘削用粘土類の耐塩性
が向上し、掘削用粘土類を利用する各種産業に貢献し得
る。
(Effects of the Invention) As explained above, the present invention improves the salt resistance of excavating clays and can contribute to various industries that utilize excavating clays.

特許出願人 第一工業製薬株式会社Patent applicant Daiichi Kogyo Seiyaku Co., Ltd.

Claims (1)

【特許請求の範囲】 1、ラムザンガム単独、又はラムザンガムと他の水溶性
ポリマーを必須成分とする掘削用泥水に使用する粘土類
の改質剤。 2、ラムザンガムを掘削用粘土に対し、0.01〜1重
量%量使用することを特徴とする掘削用粘土の改質法。 3、請求項1における他の水溶性ポリマーがa、CMC
、 b、アクリルアミドとアクリル酸との共重合体、又は、 c、アクリルアミドと共重合可能なその他のビニルモノ
マーとの共重合体である請求項 1の改質剤。
[Claims] 1. A clay modifier for use in drilling mud containing Ramsan gum alone or Ramsan gum and other water-soluble polymers as essential components. 2. A method for modifying excavation clay, characterized in that Ramsan gum is used in an amount of 0.01 to 1% by weight based on the excavation clay. 3. The other water-soluble polymer in claim 1 is a, CMC
The modifier according to claim 1, which is: (b) a copolymer of acrylamide and acrylic acid; or (c) a copolymer of acrylamide and another vinyl monomer copolymerizable with the modifier.
JP13118888A 1988-05-27 1988-05-27 Drilling clay modifier Expired - Lifetime JPH064846B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13118888A JPH064846B2 (en) 1988-05-27 1988-05-27 Drilling clay modifier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13118888A JPH064846B2 (en) 1988-05-27 1988-05-27 Drilling clay modifier

Publications (2)

Publication Number Publication Date
JPH01299889A true JPH01299889A (en) 1989-12-04
JPH064846B2 JPH064846B2 (en) 1994-01-19

Family

ID=15052075

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13118888A Expired - Lifetime JPH064846B2 (en) 1988-05-27 1988-05-27 Drilling clay modifier

Country Status (1)

Country Link
JP (1) JPH064846B2 (en)

Also Published As

Publication number Publication date
JPH064846B2 (en) 1994-01-19

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